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@ -7,9 +7,9 @@ Visit [damask.mpie.de](https://damask.mpie.de) for installation and usage instru
This is a DAMASK fork with "Discrete deformation twinning model" implementation based on work done by Dr. Satyapriya Gupta and Dr. Philip Eisenlohr at MSU.) This is a DAMASK fork with "Discrete deformation twinning model" implementation based on work done by Dr. Satyapriya Gupta and Dr. Philip Eisenlohr at MSU.)
### The Discrete Deformation Twinning Model ### The Discrete Deformation Twinning Model
The aim of this model is to accurately match experimental observations of deformation twinning while remaining computationally efficient compared to physics-based phase field models.
* We introduce stochasticity for the nucleation and growth events of twinning through random sampling, similar to Monte Carlo Methods. * We introduce stochasticity for the nucleation and growth events of twinning through random sampling, similar to Monte Carlo Methods.
* The ease or difficulty of a twinning event is controlled by adjusting the frequency of sampling. * The ease or difficulty of a twinning event is controlled by adjusting the frequency of sampling.
* At each voxel, the state of twinning is treated as a discrete quantity, unlike the approach based on diffused volume fraction method. * At each voxel, the state of twinning is treated as a discrete quantity, unlike the approach based on diffused volume fraction method.
* The kinetics of twinning occur in the form of a “jump,” rather than following a rate equation as in the “pseudo-slip” approach. * The kinetics of twinning occur in the form of a “jump,” rather than following a rate equation as in the “pseudo-slip” approach.